Method of making paper package-fasteners



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Patented Sept. 6, 1921 N. m MW QR D l l' d m w L o @nl K m l! y, /v H. N s 1% T. m ww www m QM NWT MXN M METHOD 0F MAKING PAPER PACKAGE FASTENERS.

m y ATTORNEYS T.H.KRUEGEA METHOD OF MAKING PAPER PACKAGE FASTENERS.

APPLICATION HLED Dsc. 1. 1920.

1939021 l Patented Sept. 6, 1921,;

A TTURNEYS T. H. KRUEGER.

METHOD of MAKING PAPER PACKAGE FAsTENERs.`

APPLICATION FILED DEC. l, 1920.

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l B y M/MWMM A TTORNEYS T. H. KRUEGER.

METHO'D 0F MAKING PAPER PACKAGE FASTENERS.

APPLlcAnoN man DEc.1.1920.

1,390,21 l Patentedsept. 6, 192A B SHEETS-SHEET 4.

T. H. KRUEGER. METHOD OF MAKING PAPER PACKAGE FASTENERS. APPLICATION FILED BECA. 1920.

LBQUM l Pamedsept. 6, 1921.

9 SHEETS--SHEET 5 A TTUHNEVS T. H. KRUEGER.

METHOD 0F MAKING PAPER PACKAGE FASTENER&

APPLlcATloN HLED nEc.1,192o. LBQAQ l 1 Patented Sept. 6, 1921..

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60 e Bof MMM /A/VEA/Tf-Jv MJAMML/EM/Mm Anon/vers T. H. KRUEGER.

METHOD 0F MAKING PAPER PACKAGE FASTENERS.

APPLICATION FILED DEC. I, 1920.

Patented Sept. 6, 1921.

9 SHEETS-SHEET 7.

T. H. KRUEGER.

METHOD 0F MAKING PAPER PABKAGE FASTENERS.

APPLICATION FILED DEC. I. 1920.

9 SHEETS-SHEET 8.

7.9 L805 98 88 .E 68 78 2W/71.2. f Q 89 y fl; .M www M, maui/1 WMM TTORNEVS T. H. KRUEGER. METHOD oF MAKING PAPER PACKAGE FASTENERS.

APPLICATION FILED DEC. i 1920.

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llialllfl@ STATES PATENT FFlQE.

THEODORE H. KRUEGER, OF NEW YORK, N. Y.

Specification of Letters Patent.

rammed sept. e, isei.

Original application filed May 31, 1919, Serial No. 301,057. Divided and this application led December To @ZZ whom t may concern.'

Be it known that l, Tnnononn H. Kann Gnu, a citizen of the United States, residing in the city of New York, county of New York, and State of New York, have invented certain new and useful Improvements in Methods of Making Paper Package-Fasteners, of which the following is a specification.

Thepresent invention relates to a method of manufacturing package fasteners of that general character which are disclosed in Patent No. 1,210,952. which was granted to me on January 2nd, 1917, and has for its object to provide a method by means of which package fasteners of this character may be manufactured in large quantities at a comparatively low cost.

The invention further has for its object to provide a method which includes reinforcing a strip of paper throughout its length and successively forming the complemental elements of the package fasteners from such reinforced strip. Further, the invention contemplates detachably uniting the thus formed complemental elements to form units ready for use.

The present application is a. division of my co-pending application, Serial No. 301,057, tiled Flay 31st, 1919.

For a full understandingl of the invention, reference is to be had to the following description and to the accompanying drawings in which l have illustrated a machine by means of which the method forming my invention may be practised.

Figure 1 is a side elevation of a machine for manufacturing' package fasteners in accordance with the present invention.

Fig. 2 is a top plan view thereof.

Fig. 3 is a detail View of the cutting' mechanism.

Fig. 3LL is a detail view of the cutters and the actuating mechanism therefor.

Fig. 4 is a similar view of the` feeding' and slitting mechanism.

Fig. 5 is an enlarged top plan view of the assembling mechanism, parts being broken away and shown in section to illustrate more clearly the details of construction.

Fig. 6 is a transverse sectional view on the line 6-6 of Fig. 5, looking in the direction of the arrows, portions being broken away. Fig. 7 is a similar view on the line 7-7 of Fig. 5, portions being broken away.

serial no. 427,483.

F ig. 8 is a side elevation of the construction shown by Fig. 7, looking in the direction of the arrow 8 on F ig. 7, and including the springclamping elements in addition to the arched hood.

Fig. 9 is a transverse sectional view on the line 9-9 of'Fig. 5.

Fig. 10 is a bottom plan view of one of the swinging clamping members which are provided for carrying the slotted elements of the package fasteners.

Fig. 11 is a transverse sectional View through a portion of the assembling mechanism, illustrating the various positions of the trip elements which control the clamping member.

F ig. 12 is a side elevation of the discharge end of the machine, illustrating' the mechanisni` for taking the finished package fasteners from the assembling mechanism and depositingthem upon a conveyer belt by means of which they are carried away from the machine.

Fig'. 13 is a top plan View of the mechanism illustrated by Fig. 12.

F la is a detail view of the swinging clamping jaw and trip arm of the discharge mechanism.

Figs. 15 to 19 inclusive are. detail views illustrating 4the successive movements of the cam actuated parts of the assembly mechanism when the two elements of a package fastener are brought together in an overlapping and interlocking relation.

Figs. r20 and 21 are detail views showing the end cams of the assemblingmechanism as developed.

Fig. 22 is a plan view showing the two elements of the package fastener in the end to end position in which they are initially delivered to the assembling mechanism.

Fig. 23 is an edge view of the two elements of the package fastener.

Fig. 24 is a plan view of the finished package fastener as it is discharged from the ma-y chine. the two elements thereof being brought together in an overlapping and interlocking' relation.

Fig. 25 is a plan view of a. portion of the paper blank in thecondition in which it is fed to the cutters, the places at which it will be severed by the cutters being a dot and dash line. l

Corresponding and like parts are referred indicated by to in the following description and indicated in all the views of the drawings by the same reference characters.

The package fasteners which are to be manufactured in accordance with the method forming my invention are of the general type disclosed in my prior Patent No. 1,210,952 of January 2nd, 1917, being illustrated by Figs. 22, 23 and 24 of the present drawings. Each package fastener includes two elements A and B, the inner end of each of the eleelements being reinforced by a second thickness of paper 1 which is secured thereto, while the outer end 2 of each of he elements A and B is provided with a layer of adhesive which is adapted to be moistened when afxing the package fastener to abundle or package The element B of the package 'fastener' has the sides thereof notched to provide the laterally projecting wings b,

while the element A has the inner end thereof slotted at 0. to interlock with the said wings Z). The package fastener is manufactured and delivered to the consumer with the T-shaped head of the element B overlapping and in an interlocking engagement with the slotted end of the element A, the two elements A and B being thus locked together so that the package fastener can be handled as a unit. The gummed ends 2 of the package fastener can be moistened and the device then applied to a bundle or package in such a manner as to fasten the same, although the two elements of the package fastener are held releasably together so that the bundle or package can be opened f or any purpose such as that of postal inspection, withoutthe necessity of tearing or destroying the fastener. The advantages incident to the use of a package fastener of this kind will be ob vious and are set forth in my prior patent in which the package fastener itself is claimed,

The present invention is a method by means of which these package fasteners can be quickly manufactured in large quantities at a comparatively small cost, the machine shown for practising the method being entirely automatic in its operation and requiring but little attention. In Figs. 1 and 2 of the drawings, the numeral 5 designates a table upon which the mechanism is mounted, and it is shown as supported in an elevated position by the legs G. Arranged under the table is a roll 7 of comparatively narrow ungummed paper, while a roll 8 of wider gummed paper is mounted above the table. These rolls 7 and 8 are shown as carried by center rods 9 which are received removably in inclined bearing notches 10 opening through the sides of standards 11. Suitable bars 12 are arranged at the ends of the rolls 7 and 8 tomaintain them in a properly centered relation to the machine, although both rolls are free to rotate as the paper is unrolled therefrom. The narrow paper strip from the lower roll 7 is carried upwardly around a tensioning roller 13 and then rearwardly into engagement with a pair of cleaning brushes 14. After being acted upon by the brushes 14, the strip passes through the slotted ends of a hanger 15Awithin which a moistening element 16 is arranged. A brush 17 rests upon the top of the paper strip ,so as to force it into engagement with the moistening element,said brush being carried by a swinging arm 18 and being normally held yieldably in an operative position by a spring 19. Suitable latch means 20 may be provided for holding the brush 17 in an inoperative position when this is necessary for any purpose. The moistening element 16 is shown as resting within a tray 21, into which water is fed from a bottle or reservoir 22 and maintained at a proper lerel- The moistened narrow strip Tf extends rearw from the moistening device around a t, roller 23 which directs it upwardly into engagement with the gummed strip 8, the lat ter being drawn rearwardly from the upper roll 8 and passing around a tension roller 24. This tension roller 24 is carried by arms 25 which are pivoted between their ends at 26 and engaged at their lower ends by tension springs 27. In a similar manner, the tensioning roller 13 for the narrow strip 7 is carried by arms 28 which are acted upon by tension springs 29. The gummed upper strip 8 and moistened lower strip 7'L are broughtV into contact with each other as they pass between the rear set of pressure rollers 30. The pressure of these rollers can be regulated in the usual manner by means of adjusting screws 31, and the rollers serve to force the narrow moistened strip 7 against the middle portion, of the wide gummed strip 8a. From the pressure rollers 30 the two strips 7 and 8L extend forwardly across the top of the table 5, being engaged by a second set of pressure rollers 32 before reaching the stamping and cutting mechanism. These two sets of pressure rollers 30 and 32 will cause the narrow ungummed lower strip 7 which was pre viously moistened to be securely fastened to the midle of the wide gummed strip 8, the

edges of the wide strip 8a extending laterally upon opposite sides of the narrow strip 'T The adhesive on these projecting edges of the wide upper' strip 8u will not come into contact with the narrow strip T and will accordingly not be moistened thereby, but will remain intact to form the gummed end por-V tions 2 of the package fastener.

From the second set of pressure rollers 32 the blank paper strip is carried over the bed 33 of the conventional die press 34. rThe dies 35 of this press operate upon the paper blank in the conventional manner, serving to form triangular openings for the side notches of the elements B of the package fasteners, and slots for the elements A of llO the package fasteners. From the punch press 34 the paper blank passes between feed rollers 36 (see Fig. 4) and thence under a conventional printing mechanism l) to the cutting blades 37 and 38. The paper blank has an intermittent feed, and each forward movement is for a distance corre spending to the width of one of the package fasteners.

A main shaft 39 extends transversely across the top of the punch press 34 and is provided at one end with a pulley 40 by means of which power can be applied thereto. This shaft has a chain and sprocket connection 4l with the printing mechanism P, and is provided with a crank arm 42 having a rack 43 pivotally connected thereto. This rack engages a pinion 44 which is loose upon one of the feed roller shafts 45 and has a pawl and ratchet connection 46 therewith. A roller 47 on a swinging arm 48 is held in a `yielding engagement with the back of the rack 43 by means of a spring 49, and it will be obvious that as the main shaft 39 is rotated the rack bar 43 will be reciprocated up and down. Upon the downward movement of the rack bar the pawl and ratchet connection 46 will cause the feed roller shafts 45 and the feed rollers 36 to be rotated, thereby feeding the paper blank forward, although upon the upward movement of the rack bar 43, the pawl and ratchet connection 46 will permit the pinion 44 to rotate independently of the feed roller shaft 45. The paper blank will thus be fed forward with an intermittent imovement, eaich forwaird movement being for a distance equal to the width of a package fastener. While the blank is at rest, between each forward movement thereof, the dies 35 are moved downwardly to stamp the blank, and the printing mechanism P is caused to make an impression upon the blank.

The two feed roller shafts 45 are journaled in a suitable frame 50 mounted upon the table 5, and are geared together at their ends, as indicated at 51, so that the two shafts rotate simultaneously in opposite directions. Mounted upon each of the feed roller shafts 45 between the two feed rollers 36 is a rotary shear or splitter 52, the straight edges of the two cutting' disks overlapping and being held in a yielding' engagement with each other by means of the springs 53. As the paper blank is advanced through the feed rollers 36 it is slit longitudinally at the middle point thereof by the beveled edges of the disks 52. A portion of the paper blank as it is fed to the cutters 37 and 38 is illustrated by Fig. 25. The longitudinal slit 54 at the middle of the blank is formed by the cutters 52 as the blank is advanced through the feed rollers 36. rlhe triangular openings 55 at one side of the slit 54 are formed by one of the die elements 35,

lsevered transversely upon the dotted lines 56, thereby forming the elements A and B of the package fasteners which are assembled by the mechanism about to be described. The printing mechanism P may leave any desired impression upon the paper blank, such as the legend Open here, indicated at 57 on F ig. 25.

The upper blade 37 of the cutter is shown as Xed, while the lower blade 38 is pivoted at one end thereof as indicated at 58. The paper blank is carried between the two cutters`37 and 38 and the swinging end of the pivoted cutter 38 is loosely received within the forked end 59fl of an l -shaped lever 59, said lever extending rearwardly at one side of the table 5 and being pivotally mounted at' an intermediate point as indicated at 69. The rear end of the L-shaped lever 59 extends upwardly and terminates in a shoe 59b which is positioned to be engaged by a cam 6l on the main shaft 39. At each revolution of the main shaft39, and after the paper blank has been advanced one step forward, the cam 6l of the main shaft engages the shoe 59b of the lever 59 and swings the lever to actuate the cutter 38, thereby severing' the portion of the blank which was advanced through the cutters and forming one element A and one element B which are complete in every respect and ready to be assembled in an interlocking relation to form one of the complete package fasteners. The swinging end of the pivoted cutter 38 is formed with a laterally projecting trip arm 62, and the middle portion of the cutter 38 has a pin and slot connection 63 with a lever 64, said lever being. pivoted at 65 and provided at its free end with a second trip arm 66. When the swinging cutter 38 is moved upwardly to .sever the projecting end of the paper blank the trip arms 62 and 66 are simultaneously moved upwardly and cause the clamps of the assembling mechanism to engage the severed portions of the strip.

The assembling` mechanism is mounted upon a transverse shaft 67 and receives an intermittent rotary movement from the main shaft 39. ln the present instance there are three complete assembling units mounted upon the shaft 67 and the said shaft 67 is rotated one-,third of a revolution each time the main shaft 39 makes one complete revolution and delivers a pair of package fastener elements A. and B to the assembling mechanism. The element B upon being severed from the main strip by the cutter 38 is clamped against a head 68 by means of a swinging jaw 69 which is automatically released by the trip arm 66 of the cutting mechanism (see Fig. 11). The swinging jaw 69 is rigid with a longitudinal shaft 70 which extends loosely through arms 71 projecting laterally from the clamping head 68 (see Figs. 5 and 8). A coil spring 72 surrounds the longitudinal shaft 70 and normally tends to rotate the same to move the swinging jaw 69 into engagement with the clamping head 68, Rigid with the outer end of the shaft 70 is a bell crank lever 73 which has one end thereof hooked and arranged to interlock with the hooked end 74H1 of a trip lever 74 to lock the swinging jaw 69 in an open and inoperative position. A spring 75 holds the trip lever 74 yieldably in operative position, and one end of the trip lever projects into the path of the trip arm 66 of the cutting mechanism when a particular unit of the assembling device is in position to receive the severed ends of the main blank. When the cutter 38 is actuated the trip arm 62 is moved upwardly 'and swings the trip lever 74 to disengage the hooked arms 74a thereof from the bell crank lever 7 The spring 72 then swings the jaw 69 into operative position and causes the element B of the package fastener to be clamped between the clamping head 68 and the swinging j aw 69.

The clamping head 68 is pivotally mounted upon a shaft 76 which projects from a hub 77, said shaft being arranged in a plane at right angles to the axis of the main shaft 67 and on the chord of a circle concentric. with the said axis. An arm 7 8 projects laterally from the pivot end of the clamping head 68 and carries a roller 79 which travels along the edge of a cam ring' 80 at the end of the assembling mechanism. A coil spring 81 surrounds the shaft 76 and normally tends to swing the clamping head 68 to hold the roller 79 against the edge of the cam ring 80. This cam ring 8O is rigidly mounted, and it will accordingly be obvious that the movement of the roller 79 along the high, low, and inclined portions of the cam ring will result in swinging` the clamp ing head 68 and jaw 69 into different positions although the element B will remain tightly gripped until the finished package fastener is ready to be discharged from the machine.

Referring again to Fig. 11 of the drawing, the package fastener element after being clamped will be carried downwardly and forwardly in the direction of the arrows. lVhen the particular clamp of the assembling mechanism has completed twothirds of a revolution the assembling opera-f tion will be finished and the hooked arm4 of the bell crank lever 78 will engage a fixed pin 82 projecting from one end of the ma chine, thereby moving the swinging jaw 79 into an open position and releasing the element B carried thereby. This results in bringing the other arm of the bell crank lever 73 into position for engagement by a second fixed pin 88 which coperates therewith to bring all of the parts of the clamping mechanism back into their original position, the swinging jaw 69 being locked in an open position by the Vengagement of the hooked end of the bell crank 7 8 with the hooked end 74L of the trip lever 74. The mechanism is now in posi-- tion to receive another` element B exactly as in the previous instance.

The element A of the package fastener is simultaneously gripped by a somewhat similar mechanism (see Figs. 5, 6 and 10 of the drawing). When the cutter 38 is actuated the trip arm 66 engages a trip lever 84 which is pivoted at 85 and has Va hooked end 84a for engagement with the hooked end of a bell crank lever 86. This bell crank lever is `rigid with a shaft 87 which is arranged parallel to the main shaft- 67 and is journaled in one side of the clamp` ing head 88. The swinging aw 89 is iigi with the shaft 87, and a coil spring 90 which surrounds the shaft normally tends to move the swinging jaw into operative position. As soon as the trip arm 66 is moved upwardly and trips the lever 84 the j aw 89 is released and `swings tinto operative'iaosition, gripping the element A of the package fastener and holding it against the clamping head 88. rIliis clamping head is pivotally mounted at 91 upon` a pair of arms 92 which are in turn pivotally mounted at 98 upon wings 94 projecting` from hub 95 on the main shaft67. These arms 92 have the general direction of the chord of a circle concentric with the main shaft 67. and the two sets of pivots 91 and 98 are both arranged in lines parallel to the axis of the main shaft 67, so that the clamping head 88 can be bodily moved back and forth in a direction parallel to the axis of the shaft. rlhe bell crank lever 86 of these clamps for the elements A of the package fasteners coperate with fixed pins 82 and 83, exactly as in the previous instance, to release the assembled package fastener and return the swinging jaws and trip elements to their original positions before the unit has been rotated one complete revolution and brought into position to again receive a package fastener element A.

A rigid cam ring 96 is arranged at the opposite end of the assembling device and a shoe 97 at one end of the clamping head 88 travels upon the cam and coperates therewith to move the clamping head back and forth in a direction parallel to the axis ofthe main shaft 67. A suitable spring isv provided for normally holding the shoe 97 in a yielding engagement with the cam 96.

The two elements A and B of theV package fastener are thus simultaneously gripped by the tivo clamps of an assembling unit as they are severed by the cutter 38. As the assembling unit is bodily rotated with the main shaft 67, the roller 79 travels into a lov.7 portion of the cam ring 80 and thereby swings the clamping head bodily upon shaft 76 and brings the T-shaped head of the element B into an arched hood 98 carried by an arm 99 projecting from a hub 100 upon the main shaft 67 (se-e Figs. 7 and 8). This results in flexing the lateral arms of the T-shaped head of the element B so that the arms extend at substantially right angles tothe body portion of the element B. This position is indicated by Fig. 16. The position ofthe elements A and B when first engaged by the clamp is indicated byFig. 15. Vilhile the element B is held in this position the clamping head 88 carrying the element A is moved longitudinally into a position opposite the hood 98. This position is indicated by Fig. 17 and is brought about by the shoe 97 riding u )on a raised portion 96a of the cam 96. Tlhe slots a of the element A are now directly opposite the bent ends of the lT-shaped head of the element B, so that when the clamping its original head 68 is again swung back into position the Tshaped head of the element B Will be interlocked with the slots a of the element A, this position of the parts being indicated by. Fig. 18. The two elements A and B are novv completely assembled, and after the element B is released by the jaw 69 the complete package fastener is carried by the clampinghead 88 as the same moves back to its original position, this beingindicated by F ig. 19.

The cam rings 96 and 80 are illustrated by Figs. 20 and 2.1 in a developed form, the clamps or holders moving along the sides of the respective cams in the direction indicated by the arrows. When the elements A and B of the fastener are initially gripped the roller 79 of the clamping member 68 is at that portion of the cam ring 80 correspond ing` to the left hand end of Fig. 21, While the shoe 97 of the rother clamping member or holder 88 is at the portion of the cam ring 96 corresponding to the left hand end of Fig. 20. As the carrier upon Which the assembling devices are mounted is rotated the shoe 97 travels along a lovv and straight portion 96b of the cam ring 96 and the element A of the fastener is thus maintained in the same relation to the element B. At the same time the roller 79 travels over an inclined portion 80a of the cam 80 and thereby bodily swings the clamping head 68 98, with the result that the lateral arms of the 'l'-shaped head of the fastener element B are flexed into a position at substantially right angles to the body portion of the element, this position of the parts being indicated by Fig. 16. Upon a further movement into the arched hood of the rotary carrier the roller/79 travels over a lon7 and straight portion 80b `of the cam 80, with the result that the fastener ele-y ment B is held in an unchanged position. During this period of time the shoe 97 of the other holder or clamp travels upon an inclined portion 96C of the cam 96 and thereby moves the clamping head 88 in a direction parallel to the axis of the main shaft 67, bringing the slotted end of the fastener elenient A opposite the open side of the hood With the slots a thereof in alinement with the flexed Wings of the 'iT-shaped head of the element B This position is illustrated by Fig. 17. Upon a further movement of the rotary carrier the roller 79 travels over an inclined portion 80c of the cam 80 and thereby swings .l

the clamp 68 back toward its original position, with the result that the flexed lateral arms of the 'lV-shaped head of the element B penetrate the slots a, of the element A, the said element A being held in an unchanged position by the travel of the shoe 97 over the straight and raised portion 96EL of the cam ring 96. The fixed trip pin 82 now releases the jaw 69 of the holder or clamp 68, and the roller 79 travels along an intermediate straight portion 80d of the cam 80, While the shoe 97 travels along an inclined portion 96d of the cam 96 and retracts the carrier or holder 88 to its original position, the jaw 89 being tripped to release the assembled package fastener which is gripped by a discharge device and deposited upon an endless carrier by means of Which it is conveyed away from the machine. The roller 79 travels over a third inclined portion 80c of the cam 80 to a straight raised portion 80f thereof which brings the parts into their original position. During this final stage of the movement the shoe 97 travels over a low portion 90e of the cam 96 which is really a continuation of the lonT portion 90b. `When the ends of the tivo cams are reached one cycle of operation is completed and the device is ready to receive another pair of fastener elements A and B and start upon another cycle of operation.

The mechanism for discharging the assembled package fasteners from the machine is illustrated by Figs. 12 and 13. The main shaft 39 of the machine is provided with an eccentric 101 which is surrounded by a ring 102 from which a reciprocating arm 1023` projects; This arm is pivotally connected at 104 to a plate 105 Which is loosely mounted on one end of the shaft 67. `A paivl 106 which is carried by this plate is mounted for engagement with a notched disk 107 on the shaft 67. There are three notches in the periphery of the disk 107, and each oscillation of the plate 105 upon the shaft 67 as a center results in rotating the notched disk 107 and shaft 67 exactly one-third of a revolution. It Will be recalled that there are three sets of assembling units carried by the shaft 67, so that each one-third of va revolution caused by the oscillation of the plate 105 will bring one unit of assembling elements into proper position to receive the fastener elements A and B which are severed from the end of the paper blank by means of the cutter 88. A pawl 108 is provided for engagement with the notched disk 107 to prevent over-throw or too great a movement thereof. A tension spring 109 normally tends to swing the pawl into an inoperative position, while a tail piece 110 at the pivot end of the pawl is engaged by a finger 111 on the plate 105 to swing the pawl 106 into operative position when the plate has reached the limit of its oscillatory motion, The pawl 108 is thus caused to engage one of the notches of the disk 107 at the proper time to lock the disk against further rotation and prevent over-throw thereof.

A lateral arm 112 projects from the plate 105 and is connected by a link 113 to an arm 114 which is rigid with a transverse shaft 115. The intermediate portion of this shaft 115 is provided with a pair of Lshaped arms 116 which are connected at their eX- tremities by a transverse rod 117 extending parallel to the shaft. This rod is provided with a fixed jaw 118 and also with a movable jaw 119, the latter jaw being formed at the pivot end thereof with an upwardly extending trip arm 120.

When the transverse shaft 115 is rotated to swing the elements thereof toward the machine, the two jaws 118 and 119 receive one of the assembled package fasteners from the assembling mechanism and the said jaws are forced into a closed position and caused to grip the package fastener by the engagement of the trip arm 120 with a stop 121. Upon rotation of the transverse shaft 115 in the opposite direction the trip arm 120 is brought into engagement with a second stop 122 which moves the jaw 119 of the clamping device into an open position and releases the package fastener. The package fastener then drops upon an endless belt 123 by means of which it is conveyed away from the machine, said belt passing around a roller 124 which receives an intermittent movement from the mechanism of the ma# chine. A ratchet wheel 125 is rigid with the shaft 126 of the roller, and is engaged by a pawl 127 on a lever 128 which is loose upon the said shaft 126. end of this 'lever 128f is received within a forked reark extension 114a of the arm 114. It will thus be obvious that as this arm is oscillated the lever 128 will be swung back and forth and the roller 124 given an intermittent movement by the action of the pawl and ratchet mechanism. The discharge mechanism is thus driven in perfect synchronism with the cutting and assembling mechanism A pin 129 at thev so that the operation of the machine is continuous and automatic from start to finish. y

Some means is preferably provided for locking the movable jaw 119 of the discharge clamping device in either an open or a closed position. For this purpose the two jaws 118 and 119 are shown as provided at their rear ends with the respective eX- tensions 118a and 1192 the inner face of one of the extensions being provided with a resilient projection or head 130 which frictionally engages the other extension and thereby holds the jaws in either an open or a closed position, although the position of the movable jaw 119 can be readily shifted when the trip arm 120 thereof engages the stop 120 or 121.

In the particular embodiment of the invention which has been illustrated and described for illustrative purposes,the element B of the package fastener is shown as having a substantially T-shaped formation. It will be understood, however, that this is not at all essential to the invention, since the invention contemplates manufacturing ant assembling package fasteners of this general character of many different forms and shapes, one of the elements of the package fastener having a tongued head which interlocks with slots in the other element of the package fastener. t is entirely within the spirit of the invention to employ the same in the manufacture of'any device such as a package fastener comprising two ele ments which have a detachable and interlocking tongue and slot connection with each other.

In a machine of the character shown there is an important advantage derived from the use of the multiple head assembler. With this construction, the other parts of the ma-V chine can run faster without causing the severed strips from piling up in the assembler. It requires four or five consecutive motions to assemble a package fastener of this char acter, and if there were only one assembling unit, these four or five motions would -all have to be completed before the next set of severed strips could be fed into the assembler. By porviding a plurality of assembling heads on a rotating drum, each set of severed strips is immediately moved out of the way and the actual assembling accomplished while other sets of severed strips are fed to the other assembling heads.

Another important feature of the invention is that the reinforcing thickness is fed into the machine in the form of a continuous strip. rfhis obviates the necessity of reinforcing the gummed sheet in'spots and simplifies and cheapens the cost of manufacture. The reinforcing strip maybe of a compara'- tively stiff material, while the gummed strip is of a comparatively soft and pliable material so that it will conform to an irregular surface and be susceptible of being securely fastened thereto by the adhesive.

Certain of the principles of my invention find useful employment Without using the particular' assembling means illustrated and described: that is to say-so much of my invention as relates to the novel method of forming reinforced elements for paper fasteners may be employed While other and different means than that described could be employed for detachably connecting the complemental or component parts of each fastener together. Therefore, l desire to be understood as covering the novel features and principles of my invention in any manner in which they may be jointly or severally employed. Where I have used the Word paper in the foregoing specification and annexed claims, I do so in a broad sense, since obviously the package fasteners may be made of other material, such as cloth or the like. l, therefore, wish to be understood as covering such other substitute material, or a combination of paper and other dis-similar material.

No claim is made to t-he machine shown and described, by means of Which the method constituting my invention may be practised as said machine is claimed in. my copending application above referred to.

Having thus described my invention what I claim as new herein and desire to secure by Letters Patent is:

1. The method of making paper package fasteners which includes reinforcing a strip of paper, and successively forming ther from complemental fastener elements.

2. The method of making paper package fasteners Which includes reinforcing a strip of paper, and severing the reinforced strip transversely and longitudinally to form complemental fastener elements.

3. The method of making paper package fasteners Which includes reinforcing a strip of paper, successively forming therefrom complemental fastener elements, and detachably uniting the complemental elements to form units.

4. The method of making paper package fasteners which includes reinforcing a strip of paper, and successively forming therefrom complemental fastener elements provided With interlocking ends.

5. The method of making paper package fasteners which includes reinforcing a strip of paper throughout its length, successively forming therefrom complcmental fastener elements provided with interlocking ends, and interlocking the ends of the complemental elements to form units.

6. The method of making paper package fasteners Which includes reinforcing the central portion only of a strip of paper throughout its length, and successively forming therefrom complemental fastener elements having reinforced and iin-reinforced end portions.

7. The method of making paper package fasteners Which includes reinforcing the central portion only of a strip of paper throughout its length, successively forming therefrom compl-emental fastener elements having reinforced and uil-reinforced end portions, and detachably uniting the reinforced ends of the complemental elements to form units.

8. rfhe method of making paper package fasteners which includes reinforcing the central portion only of strip of paper throughout its length and severing the strip transversely and longitudinally through the reinforced portion thereof to forni complemental fastener elements having reinforced and un-reinforced ends.

9. rlhe method of making paper package fasteners which includes reinforcing the central portion only of a strip of paper throughout its length, severing the strip transversely and longitudinally through the reinforced portion thereof to form complemental fastener elements having reinforced and un-reinforced ends, and detachably uniting the reinforced ends of the complemental elements to form units.

10. The method of making paper package fasteners which includes reinforcing a strip of paper throughout its length, and successively forming therefrom complemental fastener elements having reinforced and unreinforced end portions and provided with co-acting tongues and slots.

11. The method of making paper package fasteners Which includes reinforcing a strip of paper throughout its length, successively forming therefrom complemental fastener elements having reinforced and un-reinforced end portions and provided with coacting tongues and slots, and interlocking the tongues and slots of the complemental elements to form units.

12. The method of making paper package fasteners i-.vhich includes reinforcing a strip of paper intermediate the side edges thereof, and successively forming therefrom complemental fastener elements.

13. The method of making paper package fasteners which includes reinforcing a strip of papery intermediate the side edges thereof and successively forming therefrom complemental fasteners elements having reinforced and 11n-reinforced enc( portions.

1-l-. The method of making paper package fasteners, Which includes applying to a paper having a gummed surface, a reinforcing strip, then Vsuccessively forming therefrom complemental fastener elements having reinforced and iin-reinforced end portions and then detachably uniting the reinforced ends of the eomplemental elements to form units.

l5. The method of making paper package fasteners, Which includes reinforcing gunnned paper, then forming from said reinforced gummed paper, fastener elements, then detachably uniting the reinforcing ends of pairs of said elements to form units.

1G. The method of making paper package fasteners, which includes feeding paper from rolls of different Widths, then pasting the paper together, then slitting the paper into sections to form fastener elements having reinforced and 11n-reinforced ends, then detachably uniting the reinforced ends of pairs of said elements to form units.

17. The herein described method of making paper package fasteners, which includes feeding paper of different Widths from rolls, uniting a narrow and Wide strip together, then succesively forming therefrom complemental fastener elements, having reinforced marginal edges, then detachably uniting pairs of said elements to form units.

18. The herein described method of making paper package fasteners, which includes feeding gummed and ungunnned paper from rolls thereof by imparting a step by step movement thereto, applying moisture to the ungummed paper, then bringing both papers together under applied pressure to unite them, and successively forming therefrom detachably united fastening elements.

19. rlhe herein described method of making paper package fasteners, which includes feeding gummed and unguinmed paper from` rolls7 then applying moisture to the ungummed paper, then bringing both papers together under applied pressure to unite them, then successively forming detachablyunited fastener elements therefrom.`

In testimony whereof I have affixed my signature to this specification.

THEODORE H. KRUEGER. 

